Anyone having problem with the phone max brightness? I just noted recently that my phone max brightness is reduced when compared side by side to my friends iphone 6s. His phone also appeared to have more contrast, more like oled screen. After that I compared with few more iphone 6s, all also got higher max brightness than my phone.

Is this issue covered by warranty? I know there should be slight variation due to different supplier/manufacturer, but this problem is obvious enough that all iphone i encounter so far got more brightness than mine

By the way, I already turned off auto brightness and increased contrast in setting when doing comparison.

Do they accept if i already using a third party screen replacement? My warranty also already expired, bought it in the first day launching.

And yes, my phone always shutdown when it reached 15-25% 😕